How can PHP developers troubleshoot issues with popup window sizes?

When troubleshooting issues with popup window sizes in PHP, developers can adjust the width and height parameters of the window.open() function to ensure the popup displays correctly. By setting specific dimensions for the popup window, developers can control its size and prevent any unexpected behavior.

echo '<script type="text/javascript">
        window.open("popup.html", "_blank", "width=500, height=400");
      </script>';